若能收集到该词条相关资料的跟帖者给予奖励，根据收集资料的水平给予10～100不等的论坛币，当然也可以谈谈自己的看法，上传资料等等，请大家尽量不要复制一些搜索引擎很容易收集到的资料。
     我每天都会发送不等数量的词条，所以诚邀不同统计背景的各路大侠给予评论。
     欢迎大家多多跟帖！要数量也要质量哟
The Ansari-Bradley test is used to test the null hypothesis that the two population distribution（样本分布） functions corresponding to the two samples are identical against the alternative hypothesis that they differ by dispersion (scale).

To properly analyze and interpret results of the Ansari-Bradley test, you should be familiar with the following terms and concepts:
two-sample problem
independent samples
violation of test assumptions
distribution-free tests
rank tests
If you are not familiar with these terms and concepts, you are advised to consult with a statistician. Failure to understand and properly apply the Ansari-Bradley test may result in drawing erroneous conclusions from your data. Additionally, you may want to consult the following references: